Troya was shackled around the waist and guarded by four bailiffs. He offered an apology during the hearing, .
"First and foremost, to the victims and family members, I would like to apologize," he said. "Basically, I'm sorry to my family, the people that put faith in me to be good."
He also apologized for throwing a plastic water bottle at prosecutors in March after a jury recommended the death penalty for Troya and co-defendant Ricardo Sanchez Jr.
As he was led from the courtroom, Troya nodded to his mother, father and sister, who were silently crying.
The judge said Troya grew up in a "wonderful family" and added, "I have no idea how Mr. Troya got to be the person he is today, but he is an enormously dangerous person who has no regard for the taking of a human life."